Patents by Inventor Takayuki Sao

Takayuki Sao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220187706
    Abstract: [Problem] Providing a thick film resist composition capable of reducing environmental impact. [Means for Solution] A thick film resist composition comprising polymer (A), a deprotecting agent (B), a photoreaction quencher (C) composed of a certain cation and an anion, and a solvent (D).
    Type: Application
    Filed: March 24, 2020
    Publication date: June 16, 2022
    Inventors: Shunji KAWATO, Masato SUZUKI, Tetsumasa TAKAICHI, Takayuki SAO, Taku HIRAYAMA
  • Publication number: 20210263414
    Abstract: The present invention relates to a photoresist composition comprising a polymer(s), a photo acid generator(s), a (C) compound(s) comprising unit EO and unit PO, and a solvent(s). And the present invention relates to a method for manufacturing a photoresist coating, etched photoresist coating, and etched Si containing layer(s). And the present invention relates to a method for a manufacturing a device.
    Type: Application
    Filed: June 17, 2019
    Publication date: August 26, 2021
    Inventors: Shunji KAWATO, Hiroshi YANAGITA, Yusuke HAMA, Takayuki SAO, Taku HIRAYAMA
  • Patent number: 10859916
    Abstract: [Problem] To provide a composition for forming a fine pattern having a good pattern shape even after being applied to a thick-film resist, a high size reduction rate and less defects, as well as a method for forming a fine pattern using the same. [Means for Solution] A composition comprising vinyl resin, an amine compound having a specific cage-type three-dimensional structure and a solvent, and a method for forming a fine pattern using the same.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: December 8, 2020
    Assignee: Merck Patent GmbH
    Inventors: Yoshihiro Miyamoto, Tomohide Katayama, Takayuki Sao
  • Publication number: 20190079398
    Abstract: [Problem] To provide a composition for forming a fine pattern having a good pattern shape even after being applied to a thick-film resist, a high size reduction rate and less defects, as well as a method for forming a fine pattern using the same. [Means for Solution] A composition comprising vinyl resin, an amine compound having a specific cage-type three-dimensional structure and a solvent, and a method for forming a fine pattern using the same.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 14, 2019
    Inventors: Yoshihiro MIYAMOTO, Tomohide KATAYAMA, Takayuki SAO
  • Patent number: 8852855
    Abstract: [Object] To provide a top anti-reflection coating composition equal or superior to known products in film-formability, in refractive index, in temporal stability and in safety; and also to provide a pattern formation method using the same. [Means] A top anti-reflection coating composition comprising a solvent, an alkylsulfonic acid having 10 to 18 carbon atoms, and a fluorine-containing polymer having a weight average molecular weight of 300000 to 800000 and represented by the formula (1): -Ax-By- (1). In the formula (1), A is a repeating unit represented by the formula (A): (R is a fluorine-containing alkylene group having 1 to 40 carbon atoms or R is a fluorine-containing alkylene group having 2 to 100 carbon atoms and an ether bond); B is a repeating unit capable of combining with A to form a copolymer; x and y are numbers indicating the polymerization ratios, provided that x is not equal to 0; and A and B may randomly combine with each other or may form blocks.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 7, 2014
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Takayuki Sao, Tomohide Katayama
  • Publication number: 20140030661
    Abstract: [Object] To provide a top anti-reflection coating composition equal or superior to known products in film-formability, in refractive index, in temporal stability and in safety; and also to provide a pattern formation method employing that. [Means] A top anti-reflection coating composition comprising a solvent, an alkylsulfonic acid having 10 to 18 carbon atoms, and a fluorine-containing polymer having a weight average molecular weight of 300000 to 800000 and represented by the formula (1): -Ax-By- (1). In the formula (1), A is a repeating unit represented by the formula (A): (R is a fluorine-containing alkylene group having 1 to 40 carbon atoms or R is a fluorine-containing alkylene group having 2 to 100 carbon atoms and an ether bond); B is a repeating unit capable of combining with A to form a copolymer; x and y are numbers indicating the polymerization ratios, provided that x is not equal to 0; and A and B may randomly combine with each other or may form blocks.
    Type: Application
    Filed: April 11, 2012
    Publication date: January 30, 2014
    Applicant: AZ ELECTRONIC MATERIALS USA CORP.
    Inventors: Takayuki Sao, Tomohide Katayama